Another good idea, bad idea. Hical.ca has a magazine release for the SKS rifle. It is shaped like a trigger and positions the trigger to the side of the trigger guard.

The problem is it requires you to use your trigger finger to be placed inside the trigger guard. You can have your own ND for $49.99!

The concept is good but the execution is bad due to the fact you have to use your trigger finger inside the trigger guard to manipulate the mag release. At least with an M1A you are moving your finger in the opposite direction. But this is a trigger shaped object that sits relatively close to the actual trigger of the SKS. It would be better if the mag release as longer and protrudes down past the trigger guard so you can actuate it without being inside the trigger guard.